Results 61 to 70 of about 2,810,929 (311)

Near-field acoustic imaging with a caged bubble

Nature Communications
Bubbles are ubiquitous in many research applications ranging from ultrasound imaging and drug delivery to the understanding of volcanic eruptions and water circulation in vascular plants. From an acoustic perspective, bubbles are resonant scatterers with
Dorian Bouchet, Olivier Stephan, Benjamin Dollet, Philippe Marmottant, Emmanuel Bossy   +4 more
doaj   +1 more source

Stochastic excitation for high-resolution atomic force acoustic microscopy imaging: a system theory approach

Beilstein Journal of Nanotechnology, 2020
In this work, a high-resolution atomic force acoustic microscopy imaging technique is developed in order to obtain the local indentation modulus at the nanoscale level.
Edgar Cruz Valeriano, José Juan Gervacio Arciniega, Christian Iván Enriquez Flores, Susana Meraz Dávila, Joel Moreno Palmerin, Martín Adelaido Hernández Landaverde, Yuri Lizbeth Chipatecua Godoy, Aime Margarita Gutiérrez Peralta, Rafael Ramírez Bon, José Martín Yañez Limón   +9 more
doaj   +1 more source

A thin-film optical-acoustic combiner enables high-speed wide-field multi-parametric photoacoustic microscopy in reflection mode

Optics Letters, 2023
Multi-parametric photoacoustic microscopy (PAM) is uniquely capable of simultaneous high-resolution mapping of blood oxygenation and flow in vivo. However, its speed has been limited by the dense sampling required for blood flow quantification.
Fenghe Zhong, Song Hu
semanticscholar   +1 more source

Acoustic microscopy with mechanical scanning—A review [PDF]

Proceedings of the IEEE, 1979
Acoustic waves in liquids are known to have wavelengths comparable to that of visible light if the frequency is in the gigahertz range. The phenomena of Brillouin scattering in liquids is based on such waves. In helium near 2 K acoustic waves with a wavelength of 2000 A were studied some ten years ago at UCLA. It follows from these observations that an
Quate, C. F., Atalar, Abdullah, Wickramasinghe, H. K.   +2 more
openaire   +2 more sources

Functional Differentiation of Type II and Type I Collagen Articular Models in Synovial Fluid Film Formation and Recombinant Equine Lubricin Retention

Advanced Functional Materials, EarlyView.
Collagen II coatings support the formation of synovial fluid nanofilms, while collagen I coatings do not. Both bind recombinant equine lubricin similarly. These findings may help explain articular cartilage surface joint dysfunction, inform biomaterial design for synovial joint repair, and expand on lubricin‐based osteoarthritis therapies.
Diego R. Jaramillo Pinto, Nicolas L. Mendoza, Syeda Tajin Ahmed, Yidan Wen, Lenka Vitkova, Spencer M. Witt, Kaleb A. Cutter, Ummay Honey, Matthew J. Paszek, Heidi L. Reesink, Lawrence J. Bonassar, Kevin De France, Roberto C. Andresen Eguiluz   +12 more
wiley   +1 more source

Metallization defect detection in 3D integrated components using scanning acoustic microscopy and acoustic simulations

Microelectronics and reliability, 2018
In the context of More than Moore 3D integration concepts, the μm to nm sized failure detection and analysis represents a highly demanding task. In this work, micron sized artificially induced metallization defects in open TSVs are detected by scanning ...
Eva Kozic, R. Hammer, J. Rosc, B. Sartory, J. Siegert, F. Schrank, R. Brunner   +6 more
semanticscholar   +1 more source

Development of five-dimensional scanning transmission electron microscopy.

Review of Scientific Instruments, 2023
By combining the scanning transmission electron microscopy with the ultrafast optical pump-probe technique, we improved the time resolution by a factor of ∼1012 for the differential phase contrast and convergent-beam electron diffraction imaging.
T. Shimojima, A. Nakamura, K. Ishizaka
semanticscholar   +1 more source

Quantitative Local Photosynthetic Flux Measurements at Isolated Chloroplasts and Thylakoid Membranes Using Scanning Electrochemical Microscopy (SECM) [PDF]

, 2013
Scanning electrochemical microscopy (SECM) offers a fast and quantitative method to measure local fluxes within photosynthesis. In particular, we have measured the flux of oxygen and ferrocyanide (Fe(CN)64–), from the artificial electron acceptor ...
Robinson, Colin, Colin Robinson, Martin, Sophie, Martin, Sophie G., Kim McKelvey, McKelvey, Kim, Unwin, Patrick R., McKelvey, Kim M. (Kim Martin), Patrick R. Unwin, Sophie Martin   +9 more
core   +1 more source

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

Advanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

Scanning acoustic microscopy of polymeric materials and biological substances

Archives of Acoustics, 2015
For the last few years a new method of visualization and quantitative analysis of physico-mechanical properties and microstructure of heterogenetic media — the acoustic microscopy — has been intensively elaborated in the world.
Roman Gr. MAYEV
doaj